mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-12-26 01:31:06 +00:00
bed84792f9
Adapts all transformation classes so that their protobuf message is passed by value and then moved into the message_ field.
92 lines
3.7 KiB
C++
92 lines
3.7 KiB
C++
// Copyright (c) 2020 Vasyl Teliman
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#ifndef SOURCE_FUZZ_TRANSFORMATION_PROPAGATE_INSTRUCTION_UP_H_
|
|
#define SOURCE_FUZZ_TRANSFORMATION_PROPAGATE_INSTRUCTION_UP_H_
|
|
|
|
#include <map>
|
|
|
|
#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
|
|
#include "source/fuzz/transformation.h"
|
|
#include "source/fuzz/transformation_context.h"
|
|
#include "source/opt/ir_context.h"
|
|
|
|
namespace spvtools {
|
|
namespace fuzz {
|
|
|
|
class TransformationPropagateInstructionUp : public Transformation {
|
|
public:
|
|
explicit TransformationPropagateInstructionUp(
|
|
protobufs::TransformationPropagateInstructionUp message);
|
|
|
|
TransformationPropagateInstructionUp(
|
|
uint32_t block_id,
|
|
const std::map<uint32_t, uint32_t>& predecessor_id_to_fresh_id);
|
|
|
|
// - |block_id| must be a valid result id of some OpLabel instruction.
|
|
// - |block_id| must have at least one predecessor
|
|
// - |block_id| must contain an instruction that can be propagated using this
|
|
// transformation
|
|
// - the instruction can be propagated if:
|
|
// - it's not an OpPhi
|
|
// - it is supported by this transformation
|
|
// - it depends only on instructions from different basic blocks or on
|
|
// OpPhi instructions from the same basic block
|
|
// - it should be possible to insert the propagated instruction at the end of
|
|
// each |block_id|'s predecessor
|
|
// - |predecessor_id_to_fresh_id| must have an entry for at least every
|
|
// predecessor of |block_id|
|
|
// - each value in the |predecessor_id_to_fresh_id| map must be a fresh id
|
|
// - all fresh ids in the |predecessor_id_to_fresh_id| must be unique
|
|
bool IsApplicable(
|
|
opt::IRContext* ir_context,
|
|
const TransformationContext& transformation_context) const override;
|
|
|
|
// Inserts a copy of the propagated instruction into each |block_id|'s
|
|
// predecessor. Replaces the original instruction with an OpPhi referring
|
|
// inserted copies.
|
|
void Apply(opt::IRContext* ir_context,
|
|
TransformationContext* transformation_context) const override;
|
|
|
|
std::unordered_set<uint32_t> GetFreshIds() const override;
|
|
|
|
protobufs::Transformation ToMessage() const override;
|
|
|
|
// Returns true if this transformation can be applied to the block with id
|
|
// |block_id|. Concretely, returns true iff:
|
|
// - |block_id| is a valid id of some block in the module
|
|
// - |block_id| has predecessors
|
|
// - |block_id| contains an instruction that can be propagated
|
|
// - it is possible to insert the propagated instruction into every
|
|
// |block_id|'s predecessor
|
|
static bool IsApplicableToBlock(opt::IRContext* ir_context,
|
|
uint32_t block_id);
|
|
|
|
private:
|
|
// Returns the instruction that will be propagated into the predecessors of
|
|
// the |block_id|. Returns nullptr if no such an instruction exists.
|
|
static opt::Instruction* GetInstructionToPropagate(opt::IRContext* ir_context,
|
|
uint32_t block_id);
|
|
|
|
// Returns true if |opcode| is supported by this transformation.
|
|
static bool IsOpcodeSupported(SpvOp opcode);
|
|
|
|
protobufs::TransformationPropagateInstructionUp message_;
|
|
};
|
|
|
|
} // namespace fuzz
|
|
} // namespace spvtools
|
|
|
|
#endif // SOURCE_FUZZ_TRANSFORMATION_PROPAGATE_INSTRUCTION_UP_H_
|